General Description

The ultra-small MAX828/MAX829 monolithic, CMOS charge-pump inverters accept input voltages ranging from +1.5V to +5.5V. The MAX828 operates at 12kHz, and the MAX829 operates at 35kHz. Their high efficiency (greater than 90% over most of the load-current range) and low operating current (60µA for the MAX828) make these devices ideal for both battery-powered and boardlevel voltage-conversion applications

Features

♦ 5-Pin SOT23-5 Package

♦ 95% Voltage Conversion Efficiency

♦ Inverts Input Supply Voltage

♦ 60µA Quiescent Current (MAX828)

♦ +1.5V to +5.5V Input Voltage Range

♦ Requires Only Two Capacitors

♦ 25mA Output Current

Applications

   Small LCD Panels

   Cell Phones

   Medical Instruments

   Handy-Terminals, PDAs

   Battery-Operated Equipmen